Method of concaving heels



May 22, 1928.

H. G. CLAUSING METHOD OF CONCAVING HEELS 3 Sheets-Sheet Filed May 10, 1927 4 May 22, 1928.

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METHOD or concnvms- HEELS."

AppIicafion filed-May 10, 1927. Serial No. 1510,33 1:

My invention relates to a method of grooving heels.

It'is theobject of my invention to impart-a groove to the upper surface of the heel in such a manner that'the groove will have a flat bottom the-major portion of its length fore and aft of the heel and a trans verselyicurved bottomtransversely of the heel.

It is an additional object of my invention to provide a method of moving the heel which will progressively cut the wood from the heel to form the groove, will do this uniformly and accurately with the minimum of skill being necessary on the part of the operator.

It is a further objectto form these progressive cuts in such a manner that a marginal rim will be left around the top of the heel adjacent the groove. 7

In the accompanying drawings:

Figure 1 is a plan view of the machine on which my method can be practiced;

Figure 2 is a top plan view of a blank;

Figure 3 is a section therethrough;

Figure 4 is a top plan view of the blank cut by the first operation;

Figure 5 is a section therethrough;

Figure 6 is a top plan view of the blank as it is completed by the second operation;

Figure 7 is a section therethrough;

Figure 8 is a top plan view of the completely grooved heel;

Figure 9 is a section theret-hrough;

Figure 10 is a Section on the line 10-10 of Figure 1 showing the relationship of the cutter, guide and supporting table to the heel;

Figure 11 is a top plan view of the heel, table, cutter and guide showing the heel proceeding to its first cutting position;

Figure 12 is a similar view showing the heel about to turn into second position;

Figure 13 is a similar view showing the heel in its final cutting position;

Figure 14 shows the heel being withdrawn after having had the groove finished.

Referring to the drawings in detail, 1 designate the legs of a tab-1e 2 on which is pivotally mounted a heel supporting table 3 on the pivot-s 4. The table 2 carries a pair of journaled brackets 5 in which is journaled a shaft 6. This shaft 6 has mounted thereon a pulley 7 driven byla belt'8' from a pulley. 9 mounted on the armature shaft 10 of 'an electric motor 11.

held yieldinglygin covered position the spring: 16: Y

' mass The shaft?) carries a cutter 12, which projects through the slots 13 in thetable3." The cutter is coveredfby a guard 14 pivoted at 15 on the table A guide plate 17 is a djustably mounted on the table 3. The heel consists of the usual bottom 18, arcuate side and rear wall 19, front wall 20 and top 21. The top 21 is fiat, as Shown in Figure 2.- The heel is inverted and rests upon this flat portion of the heel upon the table 3. The left hand margin of the heel rests against the guide 17. The heel is pushed forwardly by the operator over the cutter 12 and, as it is pushed forwardly, it is rotated about its own axis, so that the left hand margin moves against the guide, the heel turning. until the rear margin is against the guide, and con-' tinuing to turn while over the cutter under the right hand margin and against the guide.

The cutter is so positioned that with the heel against the guide, the marginal wall or rim 22 will be left. The first stage of the cutting will take off the material on the major portion of the left hand side of the groove when the heel is in inverted position, while the rotation of the heel bringing the major axis of the heel in line with the cut ter will impart the proper depth of cut centrally of the concaving of the heel, while the continued rotation of the heel will serve to remove the portions 23, 24 and the portion 25. The return movement of the heelpermits of the final finish to the concavity.

At all times, the heel top is firmly held against the supporting bed so that the marginal rim 22 is not broken away but is firmly supported to prevent such an occurrence.

It will he understood that I desire to comprehend within my invention such modifications as may be necessary to adapt it to varying conditions and uses.

Having thus fully described my invention, what I claim as new and desire to Secure by Letters Patent, is:

1. In a method of concaving a heel, resting the top of the heel on a supporting Surface, guiding the heel against a marginal surface, moving the heel over a cutter and rotating the heel about its own axis as it is moved bodily over the cutter.

2. In a method of concaving a heel, supporting a heel upon a surface in predetermined relationship to a cutter, moving the heel over a cutter until the cutter is adjacent the rear of the heel, rotating the heel over the cutter until the position of the heel is reverse from its initial position, and removing the heel from the supporting surface.

3. In a method of concaving a heel, supporting a heel upon a surface in a predetermined rclationship to a cutter, moving the heel over a cutter until the cutter is adjacent the rear of the heel, rotating the heel over the cutter until the position of the heel is reverse from its initial position, removing the heel from the supporting surface, and

guiding the heel by rocking its marginal edge on a side guide.

In a method of concaving a heel, supporting the heel on a stationary surface, yieldingly supporting the front of the heel on a yielding guide surface, positioning the heel laterally ona stationary lateral guiding surface and rotating the heel against said surface as it is moved bodily over a cutter.

5. In a method of ('oncaving a heel, moving a heel over a cutter, taking an arcuate concave cut from the top of the heel, rotating the heel to remove material at the base of the cut, and moving the heel to take a second oppositely disposed concave arcuate cut.

In testimony whereof, I affix my signature.

HENRY G. CLAUSING. 

